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377,622. Patented Feb. 7-, 1888.

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UNITED STATES.

PATENT OFFICE.

WALTER H. KNIGHT, on NEW YORK, N. Y.

ELECTRIC-MOTOR CAR.

SPECIFICATION forming part of Letters Patent No. 377,622, dated February7 1888.

Application filed May G, 1887. Serial No. 237,382. (No model.)

To all whom, it may concern;

Be it known UhaULNVALTER H. KNIGHT, a citizen of the United States, anda resident of the city, county, and State of New York, have inventedcertain new and useful Improvements in Electric-Motor Gars,of which thefollowing is a specification, reference being made to the accompanyingdrawings, in which Figure l is a transverse, andFig. 2 is alongitudinal, section of a car embodying my invention.

It is a matter of necessity in the operation of mechanism by electricmotors that some "methodof gearing be employed'by which the motor mayrun at a comparatively high rate of speed. When a motor is used on acar, this gearing is a source'of great and disagreeable noise, which isonly intensified by the resonant metallic boxing usually employed forinclos-- ing the motor and gearing. There are other sources of noise andjar in the motor itself.

My invention consists in employing with a motor on a car aninclosing-case of non-resonant material, like canvas, oil-cloth, orferflax, by which the noise of the motor and gearing is reduced.

It also consists in a separate truck holding the motor, with a flexiblecasing between the truck and car-body. V

In the accompanying drawings, A is an electric motor supportedfrom anindependent truck-frame, G, by hangers K. A pinion, B,

on the motor-shaft engages with a gear-wheel, O, on counter-shaft L, andthe counter-shaft is connected to the car-axles by parallel rods orsimilar devices.

deadening-strips of'rubber, felt, or like material to it.

The casing is continued up to the body of the car by flexible or elasticmaterial E, which will permit the car-body to spring relatively to thetruck.

Any novel details of the motor, truck, or conduit shown, but not claimedherein, are reserved for claim in future applications.

What I claim, and desire to secure by Let-' ters Patent, is-

l. The combination, with a vehicle and a propelling electric motortherefor supported therefrom, of a non-resonant casing inclosing themotor. V

' 2. The combination, with a vehicle, of an electric motor thereon,speed-reducing gearing between the motor-shaft and car-axle, and anon-resonant inclosing-case for the motor.

,3. The combination of a vehicle, a propel- WALTER H. KNIGHT.

\Vitnesses: I

BENJAMIN L. DENNIS, EDWARD M. BENTLEY.

